cumminas



(lo Hohl.) 2 Sheets-Sheet 1.

J. K. CUMMINGS. MACHINL1 PoR SRINDING THE MOUTHS 0F GLASS BOTTLES, JARS. 5c.

No. 887,555. x Patented Aug. 7, 1888.

JARS, 88e. 1888.

(No Model.) l 2 sneet-sneet J.,K. CUMMINGS.

MACHINE FOR GRINDING THB MOUTHS OP'GLASS BOTTLES,

I\Io.'387,55t` Patented Aug. 7

Eig

` To all whom, it may concern:

Be it known that I, JOHN K. CUMMINGS, of

UNITED STATES! PATENT OFFICE.

JOHN KIGUMMINGS, or S'r. LOUIS, MISSOURI.

MACHINE Fon GRIND'Hierin?MoUIHsy 0F GLASS-BOTTLES, JARS, ac.

SPECIFICATION forming part of` Letters Patent N o. 387,555, dated August? f7, 1888.

y Application filed February 20, 1888. Serial No. 264,545. (No model.)

the city of St. Louis, in the State of Missouri, have invented a certain new and useful Improvement in Machines for Grinding the Months of Glass Bottles, Jars, &c.,of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, formingl part ofthis specification, and in which- Figure I is an elevation of the machine, showing the hydrant-pipe ascending through the rotary Vertical shaft and the emery or other grinding wheel in dotted lines within the bath or drip tank. Fig. II -is a vertical section taken online II'II, Fig. I, showing the rotary vertical shaft, the hydrant-pipe within it, and the emery or grinding wheel tightly xed to said rotary shaft'or screwed thereon. Fig.

III is an enlarged top view of the rotary em-V ery or grinding wheel, and shows the surface' grooves within which the mouths of the glass4 vessels are ground.A Fig. IV is an enlarged vertical section taken on line IV IV, Fig. III, showing the rotary emery wheel with the mouth of a glass vessel in course of grinding within the face grooves of the wheel. Fig. V

is an enlarged vertical section showing the mouth of the glass bottle or jar previous to grinding. Fig. VI is a like view of the mouth of the glass bottle or jar after grinding. Fig.v VII is an elevation of a modification, showing a combined sand and water tank with a vertical rotary shaft, within which 'ascends a screw-l elevator shaft that is rigidly secured thereto. It also shows the rotary grinding-wheel,which may be of emery, met-al, or any suitable material, and the sluiceway foi the return of sand and water to the well of the tank.` Fig. VIII is a Vertical section taken on line VIII VIII, Fig. VII, showing the rotary vertical shaft and the screw-elevator that ascends from the well of' the tank and said shaft surmounted by the rotarygrinding-wheel. Fig. IX isan enlarged is an enlarged vertical section of the rotaryv top View of the rotary grinding-wheel7 showing the grooves within which the necks ofthe glass vessels are ground and formed.` Fig. X

grinding-wheel, taken on line X X, Fig. IX, .and also shows a'vertical Section of a glass jar with its mouth within a groove of the grinding-wheel inA the operation of grinding and forming, and the course of the injectedy water, 8vo., within the vessel. Fig. XI is an enlarged vertical section showing the mouth of a glass 5 5 vessel after grinding. Fig. XIIis an enlarged vertical sect-ion showing a modification in which a smooth-faced grinding-wheel is used; and Fig. XIII is a horizontal detail of a modiiication, showing a direct screw attachment ofv 6o the grinding-wheel vto the screw-head of the rotary tubular shaft.

The invention relates to devices for grinding and forming the mouths of glass'bottles, jars,

Sac.; and the invention consists in features 0R65 novelty hereinafter fullydescribed,an.d pointed out in the claims.

Referring to the drawings, in which similar figures of reference indicate like parts in all the Views, l represents the vertical stand, that 7o isv preferably of cast-iron. To near the top and bottom of said stand are attached journalboxes 2, the sectional parts of which are secured together by screw-bolts Vithin said journal-boxes a vertical rotary tubular shaft, 7 5

4, has its bearings, and has secured to it a band drive-wheel, 5, which connects by an endless band with a drive-pulley operated by any suitable power. The said rotary shaft is provided with shoulder collars 6, integral there '8C with, which-work in bearing contact with the journal-boxes 2, and so hold thc shaft from longitudinal displacement. The shaft is surmounted by a circumferential iiange or bedtable, 7, to which is secured the grinding- 35y wheel 8, which may be of emery, metal, stone, or any other suitable material. The grinding-wheel is secured to its flanged bed 7- by screw-bolts 9.

10 represents a vertical'stationary fountain- 9o pipe which ascends disconnectedly within the rotary tubular shaft 4. The said fountain-v pipe is connected to thehydrant-pipe 1l by the elbow-joint12, and discharges thewater under hydrant-pressure through the jet 13 95 v into the glass vessel I4 that is beingwground. The-water is discharged by hydrant-pressure, so that it shoots upinside the Vessel under treatment, strikes against the bottom thereof, flows down its sides,'and eome'sinto Ice intimate contact with the grinding-surface at the mouth of the vessel, and thereby keeps it from healing and aids byits passing current the grinding process on the wheel.

15 represents circlunferential grooves on thc face of the griiuliug-wheel, whose bevel sides serve as a former lo shape the bevel edges on the month of the vessel and remove all tendency to produce sharp square cutting edges,

which arc a frequent annoyance and injury to parties handling lhe vessels.

The aforesaid scmicircular grooves on the face of the grindingwheel are preferably made sufficiently wide, as shown in 1 `igs.'III'a1ulIV,

x5 to allow of a slight lateral movement of the mouth of the vessel on the grinding wheel, sometimes bringing said mouth on one side of said bevel-grooves and sometimes the other. This also allows free movement for the water zo' and any grit that may be used-sueh as sandto aid the cutting of the glass. 4

While the above is my preferred form for the fac of the wheel, I do not confine myself thereto, for thc'grooves may be made narrower, as showny in Figs. IX and 7X, and ythe month ofthe vessel is then held stationary therein and lhe shape ofthe groove constitutes a complete former for said month of they vessel, :is-shown; but, as stated, in most 3o classes of manufacture I prefer the use of my open grooveway (shown in Figs. III and 1V) as allowing` just sulicient freedom for the passage of the water and grit in grinding, and also freedom for a slight lateral movement, which slight lateral movement, not predominatiug over lhe rotary movement, is not objectionable, as it is in the present usual practice of grindingr the mouths of glass vessels ou ungrooved wheels, in which the lateral movement predominatcs over the rotary movement and sweeps across the mouth of the bottle orjar or edge of the tumbler&e., and leaves as the pro .luct of said action the objectionable fractions square edge,that is apt to wound the hands or mout-h ol' t-hc user,and makes an unreliable edge over which to pour or d ropthei ngrcdientcontained in the'vesscl; also, the smooth bevel-edged month ofthe vessel provided by this invcntiomas it avoids thc irreg- 5'0 ular, splintercd, and fractions mouth or edge,

such as of tumblers, tvc., also avoids the danger now experienced of small sharp fragmentsof glass, already almost detached, passingr with the liquithflet it be poured or dropped for cooking or medicine,) and from that passing into and lacerating the mout-h of the individual, or, worse yet, be swallowed by him.

In Fig-.V is shown the mouth of a glass vessel previous to grinding in mygrooved wheel, 6o and in Figs. IV, VL'X, and .XI are shown the finished appearance of the bevel-edged mouth or edge after it has been both ground and formed by the operation of my groovcdfaced wheel.

The amount-of water provided may be adjusted by the usual stop-cock in the hydrantpipe. Therotarygrimling-whccl workswithin a bath-tank or drip-chamber, 16, that has an inclined bottom or floor, 17,110111` lhey lower inclined side of which the waste-pipe 18 carries ol'f thefwaste products l'rom the wheel.

In Figs. VII aud Vl'll is shown a modification intended especially l'or use where hyd rant water and pressure are not attainable, or where it is desired to use grit--such as sand or emery-iu connection with the watel'. In such case the verlieal yhydrant-pipe within the rotary shaft -L is replaced by a cylinder, 19, around which coils au elevator-screw, 20, which fits tight within said rotary shaft, and consequently is carried round with it. The foot of the cylinder 19 and the screw-elevator 20 that it carries workwithiu the well 21 of the bath-tank or drip-chamber 16,With which they connect by the tube 22, that drailns from the lower incline, 17, cf sail-lchamber into the said well.

The well is provided with a feed-chute, 23, for the supply of the bath of sand or other frietional grit and water to the well of the tank, the month of which chnte,wilh its cover 25, that is intended to be closed when the chute is not used, may he, as shown, elevated above rthe lloor; or, when it isA desired to facilitate the approach of the operator around the wheel, the spoilt need not rise above the floor, `and in thatease the trap-door orcover would shut down level with the floor, so as to bc convenient for the operator to walk over it; or said chute may be dispensed with altogether, and the water and grit in that case would be supplied vva the tank or drip-chamber. As the shaft 4 rotates when driven by the band-wheel 5, (the well 21 having received its snpply,`) the `elevator screw wilhin lhe rotary shaft lifts the sand and water and projects it upward through the rotary griudingwhcel into the vessel being ground, against the bottom of which the jet of water and friclional grit Strikes, and, spreading around, descends down its sides and delivers within the groove 15 0f l-he wheel, from which, after performing its functions, it descends through the drip-chamber and drainage-tubefand is rcconveycd to the well for future service.

In this form ofthe device, especially', metal and other grinding-wheels that possess but little free grit in themselves may very appropriately be used, as sand and other frictional grit can thus very easily be employed and pass around again and again, utilizingr also the grindiugs from the glass vessels until the grit has itself become too lnely pulverized for further use, when the well is emptied and again replenished.

I have shown and described the grindingwheel :1s/secured to a bed-plate that surmoun ls the rotary shaft; but I do not confine myself to that means of attachment, for the wheel may be provided with an inner central screw, 26, in its metallic core 27, as shown in Fig. XIII, which screws down on the screw-head IOO TIO

In Fig. XII is shown a flat grinding-whack which may replace the grooved wheel -on the rotary shal'twhen plate-glass or other flat object-sare to lbe ground.

I claim as 'myinventionl.. `In a glass-grinding device, the vertical tubular rotary shaft, the band-wheel that drives it, suitable means for supplying water within said shaft, the rotary grinding-wheel carried by said shaft, and the circular ridges on the face of said wheel, arranged to provide grooves between theln in which to grind and bevel the mouths of glass vessels, Sac.,eircumferenti'all y, to avoid a lateral grind and production of sharp cutting-edges, substantially as' and for the purpose set forth.V l

2. In a glass-grinding device, the combination of the supportingstand,thejournal-boxes 2, 'the -rotary-tubular shaft that has bearings in said boxes, the band-wheel that drives it,

lthe flanged hed-plate that surmounts said shaft, the grinding-wheel secured on said bedplate and to the screwhead of the tubular shaft, and the circular ridges on the face of said wheel, that provide circumferential grooves 3. In a glass-grinding device, the combination-of the stand, the rotary tubular shaft and band-wheel that drives it, the hydrant-pipe that ascends through said shaft, the bed-plate that surmounts it, the grinding-wheel secured on said bed-plate and to the screw-head of the tubular shaft, the circular ridges on the farce of said wheel,that provide between them circumferential grooves to guide, grind, and bevel the mouths of glass vessels, Spc., and the drip-chamber 16 and drainage-pipe 18, to rcceive and carry off the waste products from the wheel, substantially as and for he purpose set forth.

4. In a glass grinding device, the. combinatifonof the stand, the rotary tubular shaft and the band-wheel that drives it, the water and sand conveyer within said rotary shaft, the grinding-wheel 8 and bed-plate 7, that surmount said shaft. and a drainage-tube, substantiall y as and for the purpose set forth.

5. In a glass-grinding device, the combination of the stand, the vertical tubular rotary shalt, the band-wheel that drives it, the hydraht-pipe within said shaft, the dat rotary grinding-wheel secured to the screwhead of 65' JOHN K. CUMMINGS.

In presence of- BENJN. A. KNIGHT, SAML. KNIGHT. 

